Valve-regulator.



T. M. WILKINS. VALVE REGULATOR. APPLIoA'rIoN FILED MAY s, 1910 PatentedNov. 22, 1910.

.UNITED "STATES rAgEivrY-iorjuiou.

THOMAS M. vvvILrrINs, Vor EAST RANnoLyH, 'NEW tomi, saumon fro zmmuonnRnGULAToB. ooMrANY, or JQHNSONBUBG, rmmsnvauu, A couronnement orPENNSYLVNIA.

vana-REGULATOR speciacanon of Letters raient. 1 Patented Nov, 411,2;1919,

Application tiled Hay 6, 191th Serial No. 559,848,

This invention relates to regulatingv valves,

and has fornnobject to -provide a valve adapt-ed to. control?the'sup'p'ly 'of water to a boiler. i'

-A furthr'fobject of the inventionis to prophragms tzactuntel'tb valvewith spring meansl'forregulatingthe tensionv on 2o the valveand:withgiimprvedmeansffor 'exf pending tiie td iaph'ra'gnsfto the valvewhen the 'ivaterjjiii "the boiler fallsbblow' the required yleig.,iht.'r

A forth 1i' Meet-ouf the invention is to provide'in connection withthewater. elumn of a steam boile'ria'tube exfendi'gtothe water line andsurround-i'ng anotheftube inwhich is a coniiuedliquiitl', suclrliquidbeinp,l also 'confined within-the dia'phragnis 'regulating the valvejf-L y y With these audother objects in view, the invention` comprisescertain novel constructions, combinations 'andfl arrangements of parts,,as -vvlill-beg'hereinafter fully described and claimed. 'f

In the draynfiigsz-Figuie 1 is a view inV longitudinal lse'ction of abalanced val-ve and -diaphmgms for actuating the valve. Fig.

2 is a view in vertical section of the top of' ab the water colmn of uboiler showingthe tube"extendin'g .therein to the water li'ne andaboutthe'tube connected' with the diaphragms. 3 Like characters of referencedesignate cor- 46 responding parts throughout vthe several views. A Theinvention which forms the subjectmatter of the present application isintended to control -the"in tro luction of steam to n pump or feed waterto a boiler und embodies a balanced valve' 10 disposed in thevalvevasing 11 of substantially tho usual and ordinary balancedvalvetype. (lonnuiinicating with the valve casing 1 1 are nipples or 56unions '12. and 13 either one 'of which could valve stem 14 lrigid.

vide in lcombination with*ujf-valvedial serve as the inletand theother'the outlet for steam to' the pump or water tothe boiler.

[Extendingthrough the valve casing is a connected zit-its lower -endwith anut orco lan 15 which forms the upperextremityof a battery offlexible diaphragms 16 connected in the usual manner and secured at thelower end to a threaded nipple l.17. The threaded nipple 17 is in 65communication -with a tube 18 which is plug ed as at.19 at the lower endand is surroun ed `by a tubular casing 2G. The tube 18 and' thediaphragm 16 are iilled .with ywater orfan desired or approved .liquidand the tubu ar casing 20' is in communication by means of e tube 21with the to of Vthe vwater*column 22 connected witli .i steam boiler. Apassage 23 .is provided -jfor 'admitting :steaminto the top of the 75water columnabove the water line 2t. The tube 21' extendingdownwardlyinto the water column' may lie-adjusted as to height by meansof a coupling 2 5 screw-threaded and by reason of'such screw-threadingad- S0 justable vertically. Toulimit the movement ofthe valve 10 .`aserew 26 1s preferably inserted through the top of the valve easing 11and provided with engaging' means 27 foi' 'operating the same althoughthe use'of such 8 screw and operating means is not essential to thepresent lnvention.

In operation the diaphragm 16 exerts tension uponz the vulve stem 14 tohold the valve to seat undernormal ten'iperature. VJhen 90 the waterline 24 is above' the lower end of the tube'21such tube 21 and tubularcasing .20 will filled withthewater which will surround the tube 18which is filled with water or'bther fluid. When the water linel 95 dropsbelow the end ofthe tube 21 the water passes from out thetubular casing20 and tube 21 and such tubular casing and tube are then filled withsteam xwhich surrounds the tube 18 and raises the-temperature of the 10,liquid therein either vuporizing such liquid or expanding it withoutvaporizing :is the @use may be and thereby expanding the diaphragm 1Gand opening the valve 10. rhe opening of the vulve l() autoinaticallyad-10') mits steam to the pump or to admit water to vthe boiler when thewater issupplied under constant pressure.

lVith the device cfmstructed as shown and the diaphragm und'tube 18filled with water 1L@ practically instantaneous both as to opening it isfound that the action' is very acute and und closing the' valve. Theadmission of steam to the clsng 22 almost instantly raises thetemperature of the liquid-contained in the tube 18 to such an extent asto open the vulve 10 while the moment the water line reaches the tube 21the steam within the'tube 21 und the tubular casing 2O is condensed undthe water Hows up and surrounds the tube 18 thereby reducingthetemperature of the confined li uid such temperature further beingreduced y the great radiation surface of the diuphrugms themselves.

What Iolaim is '.lho combination with 'a valve casing und reciprocatingvalve mounted therein of n valve stem extending outwardly through thevalve casing, an djusting' screw inserted througjx the valve casing -undadapted to E. P. CRUMP, N. MEEM.

